I went by a moving sale last summer and a guy had a bag of iron heads.  I came by the next day with the thought of buying one head to replace one my wife lost.  The guy was packing up and gave me the whole bag for free as he was on his way to Goodwill to donate everything.  They say “Tracker Midsize” on them.  I’ve searched the Internet and can’t find anything about them.  Anybody have any idea about where they came from, who made them, sold them or anything?  Thanks